Pneumat Systems Cardox CO2, Technical Manual

  Cardox  Techical  Manual   

Page 

19

Problem

Cause

Solution

Bubbles appear when the dis-

charge the discharge head is 

placed under water.

Bad seal between discharge head 

and tube.

The head is not tight to the body.   

Use the impact wrench, rattle the 

discharge head for additional tight-

ness and retest.

Bubbles appear when the fill head 

is placed under water originating 

from the connection between the 

fill head and tube.

Bad seal between fill head and 

tube.

When bubbles originate from the 

threaded connection of the head 

to the tube body the fill head may 

not be tight to the body.  Use the 

impact wrench and rattle the fill 

head for additional tightness.  If 

bubbles continue the copper 

seat on the heater element is not 

functioning properly.  Bleed off the 

tube, remove the fill head, remove 

the heater element and inspect for 

damage, clean the threads, seating 

shoulder in the tube and seating 

surface on the head, replace the 

heater element, lubricate, as-

semble and tighten with the impact 

wrench. Recharge the tube and 

retest.

If bubbles continue following re-

tightening, inspect the washer and 

shear disk assembly to ensure it to 

be seated properly.  Bleed off the 

CO2, remove the discharge head, 

remove the shear disk and copper 

washer, inspect components for 

possible explanation, re-clean the 

seat and threads, reassemble with 

new washer and disk, re-torque us-

ing the impact wrench.  Recharge 

the tube and retest.

Bubbles appear when the fill head 

is placed under water, from the 

bleed-off valve.

Loose valve or bad seal in bleed 

valve.

When bubbles originate from 

the bleed off valve retighten with 

1/4"hex wrench.  If leakage con-

tinues replace the bleed valve 

assembly, recharge the tube and 

retest.